copy objects from one scene to another
The the Make Links operator to link objects between scenes.
Select a bunch of objects, press Ctrl + L Make Links &gt; To Scene then pick a scene from the list.
Beware that without further action these linked objects remain linked and are in fact one and the same, that means any transformations made in one scene will propagate to others both in Object Mode and in Edit Mode.
To make them independent select them and press U Make Single User then choose an option. Object will make them move independently but still share Object Data or geometry. Object &amp; Data will make them unique and completely independent.

For 2.8 series this can be found under the 3D View header menu, either under Object &gt; Relations &gt; Make Single User, or Object &gt; Make Links.